skivvick is when you do something slick.
like.
if you almost fall, and catch yourself.
in the moment, you say: skivvick!

or describing a moment in time where you messed up.

*Walks off the curb, stumbling a moment*
user: Ski-viiiiick!
*continues to walk to the gas pump*
friend: what the fuck was that?
user: phew, almost lost myself on that skivvick..!
friend: good one, asshole.

or

reporter: what would you call that move back there?
user: uck, 'ivvick skivvick.
reporter: lolwot?